Analysis
-
max time kernel
150s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
-
submitted
01-12-2024 02:32
General
-
Target
64a45b42204cf4412dc2891368a4b72670642a008b13f3d99f6d3d42de95a842.exe
-
Size
297KB
-
MD5
314558f9a6da39ffd12cba6c1064b3b8
-
SHA1
2c416cbfa8aeee687534b7c0888d411c0a837c59
-
SHA256
64a45b42204cf4412dc2891368a4b72670642a008b13f3d99f6d3d42de95a842
-
SHA512
41fdd3cff2e4620c0dfc7adca6a985ba5af69c1e72be409ae8d206534e32e1d3d34358f3f90521f57969c3cdf391442f4dfeba2a174b3abcbe72257d36706947
-
SSDEEP
6144:ZUL4NWKzjkaphkIOe2q4EVSh/Bw/mhMgAB:ZUsNWK3bT4EneIB
Malware Config
Extracted
C:\MSOCache\UOJATWFS-DECRYPT.txt
http://gandcrabmfe6mnef.onion/11c0a739633ba1d3
Signatures
-
Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
-
Gandcrab family
-
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
-
Renames multiple (282) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
-
Drops startup file 2 IoCs
-
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
-
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
-
Drops file in Program Files directory 40 IoCs
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
-
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
-
Modifies system certificate store 2 TTPs 9 IoCs
-
Suspicious behavior: EnumeratesProcesses 2 IoCs
-
Suspicious use of AdjustPrivilegeToken 43 IoCs
-
Suspicious use of WriteProcessMemory 4 IoCs
-
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\64a45b42204cf4412dc2891368a4b72670642a008b13f3d99f6d3d42de95a842.exe"C:\Users\Admin\AppData\Local\Temp\64a45b42204cf4412dc2891368a4b72670642a008b13f3d99f6d3d42de95a842.exe"1⤵
- Drops startup file
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\wbem\wmic.exe"C:\Windows\system32\wbem\wmic.exe" shadowcopy delete2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Defense Evasion
Indicator Removal
1File Deletion
1Modify Registry
2Subvert Trust Controls
1Install Root Certificate
1Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
8KB
MD56e4a482aa4df6e3e2ecec73ca89336c4
SHA1c603faa23c8e2dea67b367e54225ddddc1c17b3c
SHA2564b950be38a5c62da0880ee0fc639a755061e2abb994fb063c7f72ea11041df8e
SHA512b88e503d608ede3929aad1398bdac08472441fb81dfe2fad48dee642475cae852c43cd57451f81085fca87fb8ea1d8f64c7eab2197cc43cd0de71ad4e3930829
-
Filesize
1KB
MD5a266bb7dcc38a562631361bbf61dd11b
SHA13b1efd3a66ea28b16697394703a72ca340a05bd5
SHA256df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e
SHA5120da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc
-
Filesize
342B
MD5455876805a7efce189af697d1dba0775
SHA11ed607cab1b6655d298b18dcdc0e48e76bd0abf0
SHA256b750e8d1d5dfa1846a07d9533ad3a30bd98082820c14903c3a18227be9b5ca89
SHA512e6a2e6fcad609dc18aa328cd21db231a901e6fc95b3067b73731f1414e76b15a185f0844cb552e653c7e20f933db3fd68ad4435e975deb6e0e48bd8335198aa9
-
Filesize
242B
MD5cccda6e83ccc9a788d94e1ce4adb00e4
SHA1ef36156b51d0f2003bb6c995fbb7dd0d1c0607c7
SHA2564de5b62a98a57ed6080c7c7e38e22b373b5da6e94cd2820ac6edc687de6f61e9
SHA512c30888e3e735899507a0fa5525fc4dd56b964f37c61d98638a048a0a83d12bfb0f9e8275457a9cf0e773f8ed7e3d13e4393bcfe4bc0288ea0c58a26677907a08
-
Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
-
Filesize
181KB
MD54ea6026cf93ec6338144661bf1202cd1
SHA1a1dec9044f750ad887935a01430bf49322fbdcb7
SHA2568efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA5126c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b
-
Filesize
1024KB
-
Filesize
160KB
-
Filesize
1024KB
-
Filesize
316KB
-
Filesize
160KB